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Maria Jesus Y Maria


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Maria Jesus Y Maria

  1. 1. System Respiratory <ul><li>Autoras: Mª Jesús Gómez López y María García Galán . </li></ul>
  2. 2. System Respiratory <ul><li>The respiratory system generally includes tubes, such as the bronchi, used to carry air to the lung , where gas exchange takes place. </li></ul>
  3. 3. System Respiratory <ul><li>A diaphragm pulls air in and pushes it out. Respiratory systems of various types are found in a wide variety of organisms. In humans and other mammals , the respiratory system consists of the airways, the lungs, and the respiratory muscles that mediate the movement of air into and out of the body. </li></ul>
  4. 4. System Respiratory <ul><li>Within the alveolar system of the lungs, molecules of oxygen and carbon dioxide are passively exchanged, by diffusion, between the gaseous environment and the blood. </li></ul>
  5. 5. System Respiratory <ul><li>Air moves through the body in the following order: </li></ul><ul><li>Nostrils. </li></ul><ul><li>Nasal cavity. </li></ul><ul><li>Pharynx. </li></ul><ul><li>Larynx. </li></ul><ul><li>. Trachea. </li></ul><ul><li>. Thoracic cavity (chest). </li></ul><ul><li>Bronchi. </li></ul><ul><li>Alveoli. </li></ul>
  6. 6. System Respiratory <ul><li>- Ventilation of the lungs is carried out by the muscles of respiration. </li></ul><ul><li>- Inhalation is initiated by the diaphragm and supported by the external intercostal muscles. </li></ul><ul><li>- Exhalation is generally a passive process, however active or forced exhalation is achieved by the abominal and the internal intercostal muscles. </li></ul>